In the heart of the ocean, in the mysterious waters of the Bermuda Triangle, is a beautiful city built by the legendary people of Atlantis. Its sole inhabitant is a child, the prince Akata, the last of the Atlanteans. With him in the underwater city lies all the knowledge, technology and the extraordinary powers accumulated by the people for 5000 years. But modern technologies threaten the city: men with sophisticated machinery plumb the depths of the ocean in order to extract its riches. Akata, with the help of the hologram of his master, Shum, and the ray-like mermaid Oya, must protect the Atlantean heritage, particularly the Blue Ray, from falling into the wrong hands.